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Question
Find the square root by prime factorisation method
784
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Solution
784 = 2 × 2 × 2 × 2 × 7 × 7
`sqrt(784)` = 2 × 2 × 2 × 2 × 7 × 7 = 28
| 2 | 784 |
| 2 | 392 |
| 2 | 196 |
| 2 | 98 |
| 7 | 49 |
| 7 |
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